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Solution: Minimum Replacements to Sort the Array

Understand how to efficiently sort an array in non-decreasing order by applying minimum replacements through a greedy approach. Learn to split elements strategically from right to left to preserve order and reduce operations, mastering an O(n) time complexity solution.

Statement

You are given a 0-indexed integer array nums. You are allowed to perform the following operation any number of times:

  • Select any element in the array and replace it with two positive integers whose sum is equal to the selected element.

For example, if the array is nums = [5, 6, 7], you can choose the element 6 and replace it with 2 ...